17
TROUBLESHOOTING
Is there Audio at IC252
pin#4,11 in LINE2 mode?
IC601 pin#27
A.Mute is L or
H?
NO
Check Input LINE2 JACK.
Is 12V obtained at IC252
pin#16?
Is LINE2 Audio signal output
at IC252 pin#3,13?
Check POWER circuit.
NO
YES
NO
IC601 pin#20 is H?
pin21 is H?
Is about 8V obtained at
IC252 pin#9? Is about 8V
obtained at pin#10 ?
Replace IC252.
Check IC601.
Check
R298,R299,R646,R647.
NO
NO
C at Q258 is L or H?
YES
Check
IC601.
Check Output JACK.
Check
Q257,Q258,R2
40,R241,R242.
H
H
L
L
YES
YES
YES
A. c. LINE2 E-E
No sound in LINE2 E-E
mode.
Summary of Contents for DV6T811N-LT
Page 27: ...26 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono 2 2 AUDIO HI Fl Q901 collector...
Page 29: ...28 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM 120V ONLY 5...
Page 30: ...29 CIRCUIT DIAGRAM 2 PO W ER SUPPLY SCH EM ATIC DIA G RA M DV D CO M BO FREE 5...
Page 31: ...30 CIRCUIT DIAGRAM 3 VIDEO AUDIO SCHEMATIC DIAGRAM...
Page 32: ...CIRCUIT DIAGRAM 4 SERVO SYSCON SCHEMATIC DIAGRAM 31...
Page 33: ...CIRCUIT DIAGRAM 5 DIGITAL AUDIO SCHEMATIC DIAGRAM 32...
Page 34: ...CIRCUIT DIAGRAM 6 Hi Fi SW CIRCUIT DIAGRAM 33...
Page 35: ...CIRCUIT DIAGRAM 7 INPUT AUTPUT SCHEMATIC DIAGRAM 34...
Page 36: ...CIRCUIT DIAGRAM ATATI 35...
Page 37: ...CIRCUIT DIAGRAM 36...
Page 38: ...CIRCUIT DIAGRAM CPU 37...
Page 39: ...CIRCUIT DIAGRAM DECODER 38...
Page 40: ...39 PCB CIRCUIT BOARD 1 1 VCR MAIN 6...
Page 41: ...PCB CIRCUIT BOARD 1 2 POWER 40...
Page 42: ...PCB CIRCUIT BOARD 1 3 LOGIC 41...
Page 43: ...PCB CIRCUIT BOARD 2 1 DVD MAIN A 42...
